Heater



April 11, 1950 1 w. BEGGS 2,503,702

HEATER Filed Aug. 13, 1945 l f'ff'f' 20 fw. 34

Patented Apr. 11, 1950 HEATER' Joe Wilbur Beggs, McPherson, Kans.,assignor to Black, Sivalls & Bryson, Inc., Kansas City, Mo., acorporation of Delaware ApplicatonAugust 13, 1945, Serial No. 610,549

This invention relates to heaters, particularly adapted for using acrude oil or the like for fuel, for example, fluid jacket heaters suchas used in treating hydrocarbon liquids.

In heaters of this character, gas and liquid fuels that operatesatisfactorily in conventional burner equipment are not always availableand it is desirable to use a portion of the liquid being treated in theheater for fuel.

It is, therefore, the principal object of the invention to provide aburner equipment for a fluid jacket heater capable of operatingsatisfactorily on a portion of the readily available hydrocarbon oil.

Other objects of the invention are to provide a simple and inexpensiveburner for fluid jacket heaters and to provide a burner capable ofoperating over a substantial period of time with a minimum of attentionand regulation.

In accomplishing these and other objects of the invention I haveprovided improved structure, the preferred form of which is illustratedin the accompanying drawings wherein:

Fig. 1 is a perspective view of a iiuid jacket lheater designed andequipped with a burner mechanism embodying the features of the presentinvention.

Fig. 2 is a vertical section through the fluid jacket heater.

Fig. 3 is a perspective view of the burner pan, air admission duct andflange coupling therefor shown in disassembled spaced relation.

Fig. 4 is an elevational section through the sight tube.

Referring more in detail to the drawings:

I designates a substantially conventional duid jacket heater which inthe illustrated instance includes an outer jacket 2 comprising acylindrical `wall 3 closed at the upper end by a head 4 and at the lowerend by a base plate 5 of larger circumference than the wall to provide aprojecting footing flange 6. Enclosed in the jacket is a heating unit lincluding an annular wall 8 spaced from the wall 3 of the jacket to forman annular fluid passageway 9 therebetween and an inner heating chamber.The wall 8 is of less height than the wall 3 to provide an upper uidcircu lating space I encircling a ue outlet I I, the outlet being formedby a collar I2 encircling an opening lI3 in a head I4 that connects withthe wall 8. The lower end of the `wall 8 is connected by acircumferential flange I with the wall of the outer jacket at a pointspaced above the base plate 5.

Formed Yin the Side wall of the outer jacket in 1 Claim. (Cl. 122-17)iro substantial registry with the -space I6 above the b-ase plate is adoor I'I through which access may be had to a burner space within theheating unit. The door I'I is retained in position by suitable clampingdevices I8 to provide an air-tight closure so that the air supply to theburner is under control.

Fluid to be heated is admitted to the lower end of the passageway 9through a pipe I9 and discharged from the upper end through a pipe 20Ias shown in Fig. 1. As above stated, it is often desirable to heat thefuel being treated with the most available fuel such as the liquidhydrocarbon being treated, consequently, a special burner assembly isrequired to burn such fuel as now to be described: j A

The burner assembly includes a burner pan '2I preferably formed of castiron orfother heat resistant material and includes a bottom 2.2 havingan annular wall 23, the bottom 22 being supported above the base plateupon nre brick 24 as shown in Fig. 2. The` burner pan is adapted forinsertion through the door I'I and is of smaller diameter than the wall8 so that the flange of the pan is adapted to project partially into thelower end of the heater.l Extending through the outer jacket and thewall of the heater at a point above the base plate is a tube 25 suitablyconnected thereto to provide leak-tight connectionv and form an entranceopening through the jacket to the interior of the heater unit. Thetube25pro jects from the jacket and `carries an annular flange 26 forattaching a collar 21 forming fan inlet 28 for combustion supportingair. vThe colf lar 21 carries a flange` 2 9V that is removably'connectedwith the flange 26 by fastening devices30. Connected to the collar inany suitable manner is a pipe 3| leading over the pan 2| toward thecenter thereof and which carries an elbow 32 having a downwardlyextending discharge nipple 33 located substantially over the burner panand pro- 'jecting slightly thereinto `as shown in Fig. 2. The pipe 3|,elbow 32 and nipple 33 thus provide an air flow duct through which allof the air necessary to support combustion is admitted into the heaterunit and directed downwardly for discharge into the burner pan.

Fuel is removed from the passageway at the top of the heater jacket by apipe 3l! which is connected through a union 35 with a pipe 36 having acontrol valve 31 therein. The pipe 36 leads substantially horizontallythrough the air supply duct and is supported within the respective endsof the pipe 3| by spiders 38 and 39. The terminal end of the pipe 36carries an L fitting 40 having depending nipple 4l which dischargesdownwardly coaxially `of the nipple 33 forming a discharge nozzlecoaxial with the air stream. Hot products of combustion resulting fromthe burner rise upwardly of the walls of the heater to heat the wallsfor transmitting heat to the liquid being circulated through thepassageway, the products of combustion being nally discharged throughthe ue outlet I I.

The air ow through the air supply duct is maintained responsive to thedraft effected by burning of the fuel and expansion of the hot productsof combustion through the ue outlet.

In order to observe action of the burner, a peephole is provided intothe burner space. This is effected through a tube 42 arranged slantwiseand extending through suitable openings 43 and 44 in the walls 3 and 8.The outer end of the tube projects from the outer jacket and carries acap 45 (Fig. 4) having a heat resistant transparent .closure 46 whichmay be formed of Pyrex or other borosilicate glass. The tube is arrangedat such an angle that the burner pan and nozzle are readily sightedtherethrough.

In operation, fuel is admitted under control of the valve 31 anddischarged into the burner pan 2| coaxially of an air stream movingthrough the air inlet duct responsive to draft through the flue outletIl. Upon ignition the fuel heats the pan to substantially red heat andthe flames pass upwardly along the inner sides of the heater chamber toheat the surrounding uid. Action of the flames and operation of theburner is readily discernible through the transparent window of thesight tube.

An apparatus constructed and assembled as described is capable ofoperating over a substantial period without coking up of the burner panor clogging of the burner nozzles. While the burner is operated atsubstantially high temperature, the air duct and fuel supply lineremains comparatively cool by reason of the cooling effect of the airwhich supports combustion, consequently, the parts of the burner willnot burn out readily, particularly when constructed of cast iron orother heat resistant material.

From the foregoing it is obvious that I have provided a heater structureespecially adapted for fluid jacket heaters which is of simple andinexpensive construction and capable of successful operation on readilyavailable fuels such as crude oil and the like and without the necessityof the conventional expensive fuel controls.

What I claim and desire to secure by Letters Patent is:

A heater for liquids including outer and inner jacket above the bottomof the outer jacket and provide a space conforming to depth of the fuelpan, said wall of the outer jacket having a fuel pan insert openingbelow said ring for insertion of the fuel pan under said ring, means forsupporting the fuel pan in raised position after it has been inserted, atube extending through the walls of the jacket at a point above the panand having a flange exteriorly of the outer jacket, an air supply ductextending coaxially through said tube and terminating within the innerjacket .in a downwardly directed outlet end discharging substantiallycoaxially within the fuel pan and having a flange on the outer endabutting the flange on said tube, fastening means for securing theflanges together to support the air supply duct in fixed relation withrespect to the axis of the pan, a fuel supply pipe extending through theair duct and terminating in a downwardly directed fuel outlet fordischarging fuel into the pan, and means supporting the fuel supply pipewith said downwardly directed terminal in coaxial relation with thedischarge end of the air supply duct.

J OE WILBUR BEGGS.

REFERENCES CITED The .following references are of record in the le of.this patent:

UNITED STATES PATENTS Number Name Date 387,927 Smith Aug. 14, 1888949,648 McClure et al Feb. 15, 1910 1,809,920 Woodward June 16, 19312,084,297 Martin June 15, 1937 2,136,317 Rialdini Nov. 8, 1938 2,149,182Powers Feb. 28, 1939 2,164,225 Walker June 27, 1939 2,165,162 ThorntonJuly 4, 1939 2,173,115 Hutto Sept. 19, 1939 2,218,154 Ramsey Oct. l5,1940 2,228,324. Norton Jan. 14, 1941 2,409,470 Breese Oct. 15, 1946FOREIGN PATENTS Number Country Date 40,962 Australia Feb. 10, 1910

